Rethinking GNNs
Over-squashing, Bottlenecks, and Graph Ricci curvature
Over-squashing is a common plight of Graph Neural Networks occurring when message passing fails to propagate information efficiently on the graph. In this post, we discuss how this phenomenon can be understood and remedied through the concept of Ricci curvature, borrowed from the field of differential geometry.
Published in
9 min readNov 30, 2021
